2022.06.30: PS1 astrometry updated using Gaia EDR3
The astrometry in PS1 has been updated using Gaia EDR3. Systematic astrometric distortions and color terms (from differential chromatic aberration) are greatly reduced. It is still possible to access the old positions, but the new astrometry is preferred for most purposes. See PS1 Astrometry Correction Using Gaia EDR3 for more details.
2021.11.04: Bulk image download Python script
2020.06.29: PS1 VO Table Access Protocol information added